Add Slack Jira Pipeline

Add /slack_jira POST route
Validate Body

config/autoload/dependencies.global.php

@@ -1,4 +1,6 @@
 <?php
+use App\Pipeline\SlackJiraPipeline;
+use App\Validator\ValidateBody;
 use Zend\Expressive\Application;
 use Zend\Expressive\Container\ApplicationFactory;
 use Zend\Expressive\Helper;
@@ -14,11 +16,13 @@
         'invokables' => [
             // Fully\Qualified\InterfaceName::class => Fully\Qualified\ClassName::class,
             Helper\ServerUrlHelper::class => Helper\ServerUrlHelper::class,
+            ValidateBody::class           => ValidateBody::class,
         ],
         // Use 'factories' for services provided by callbacks/factory classes.
-        'factories' => [
-            Application::class => ApplicationFactory::class,
-            Helper\UrlHelper::class => Helper\UrlHelperFactory::class,
+        'factories'  => [
+            Application::class       => ApplicationFactory::class,
+            Helper\UrlHelper::class  => Helper\UrlHelperFactory::class,
+            SlackJiraPipeline::class => SlackJiraPipeline::class,
         ],
     ],
 ];

config/autoload/middleware-pipeline.global.php

@@ -48,6 +48,7 @@
             'middleware' => [
                 ApplicationFactory::ROUTING_MIDDLEWARE,
                 Helper\UrlHelperMiddleware::class,
+                Helper\BodyParams\BodyParamsMiddleware::class,
                 // Add more middleware here that needs to introspect the routing
                 // results; this might include:
                 // - route-based authentication

config/autoload/routes.global.php

@@ -1,5 +1,7 @@
 <?php
 
+use App\Pipeline\SlackJiraPipeline;
+
 return [
     'dependencies' => [
         'invokables' => [
@@ -24,5 +26,11 @@
             'middleware' => App\Action\PingAction::class,
             'allowed_methods' => ['GET'],
         ],
+        [
+            'name' => '/slack_jira',
+            'path' => '/slack_jira',
+            'middleware' => [SlackJiraPipeline::class],
+            'allowed_methods' => ['POST'],
+        ],
     ],
 ];

src/App/Pipeline/SlackJiraPipeline.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Pipeline;
+
+use App\Validator\ValidateBody;
+use Interop\Container\ContainerInterface;
+use Zend\Stratigility\MiddlewarePipe;
+
+class SlackJiraPipeline
+{
+    public function __invoke(ContainerInterface $container)
+    {
+        $pipeline = new MiddlewarePipe();
+        $pipeline->pipe($container->get(ValidateBody::class));
+
+        return $pipeline;
+    }
+}

src/App/Validator/ValidateBody.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Validator;
+
+use Psr\Http\Message\ServerRequestInterface;
+use Zend\Expressive\Container\Exception\InvalidArgumentException;
+use Zend\Stratigility\Http\ResponseInterface;
+
+class ValidateBody
+{
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
+    {
+        $body = $request->getParsedBody();
+        if (!$body) {
+            throw new InvalidArgumentException("Invalid Body");
+        }
+        return $next($request, $response);
+    }
+}